CN117248834B - Petroleum expansion casing joint - Google Patents
Petroleum expansion casing joint Download PDFInfo
- Publication number
- CN117248834B CN117248834B CN202311436163.XA CN202311436163A CN117248834B CN 117248834 B CN117248834 B CN 117248834B CN 202311436163 A CN202311436163 A CN 202311436163A CN 117248834 B CN117248834 B CN 117248834B
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- China
- Prior art keywords
- ring
- sleeve
- sealing
- sealing ring
- pressure sensor
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- 239000003208 petroleum Substances 0.000 title claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 80
- 238000013500 data storage Methods 0.000 claims description 10
- 238000005260 corrosion Methods 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention relates to the technical field of petroleum transportation, in particular to a petroleum expansion casing joint, wherein a sliding sleeve is arranged on a first connecting joint, the sliding sleeve slides relative to the first connecting joint, so that a threaded sleeve is driven to be close to a mounting pipe, the threaded sleeve is connected with a connecting pipe on the mounting pipe, the connecting pipe also penetrates into an inner pipe of the first connecting joint, the sealing performance of a connecting part is improved through a sealing assembly.
Description
Technical Field
The invention relates to the technical field of petroleum transportation, in particular to a petroleum expansion casing joint.
Background
The petroleum casing pipe is an important component in the exploration and development of the oil and gas field, and when the petroleum casing pipe is used, the splicing and the installation between two petroleum casing pipes are completed through the threaded connection of the joints between the petroleum casing pipes, and the threaded connection mode requires the mutual matching of the threads between the joints.
However, the existing method mainly seals by a sealing ring, so that the reliability is low, leakage is easy to occur, and the leakage cannot be found and treated in time.
Disclosure of Invention
The invention aims to provide an oil expansion casing joint, which aims to improve the sealing performance so as to enable the sealing performance of the joint to be better.
In order to achieve the above object, the present invention provides a petroleum expansion casing joint, including a first joint, a sliding sleeve, a threaded sleeve, a mounting pipe and a sealing assembly, wherein the first joint has an inner pipe, the sliding sleeve is slidingly connected with the first joint and is located at one side of the first joint, the threaded sleeve is rotationally connected with the sliding sleeve and is located at one side of the sliding sleeve, the mounting pipe has a connecting ring, the connecting ring is in threaded connection with the threaded sleeve, the sealing assembly includes an air-filling cavity, a supporting ring, a limiting ring, a first sealing ring, a second sealing ring, a first sealing ring and a second sealing ring, the supporting ring is slidingly arranged on the inner pipe, the limiting ring is fixed on the mounting pipe, the air-filling cavity is arranged between the supporting ring and the limiting ring, the first sealing ring is arranged at one side of the supporting ring, the first sealing ring is arranged between the first sealing ring and the air-filling cavity, and the second sealing ring is arranged between the limiting ring and the air-filling cavity, and the second sealing ring is arranged at one side of the second sealing ring.
The threaded sleeve comprises a handle and a sleeve body, wherein the handle is in sliding connection with the sleeve body and is positioned on one side of the sleeve body.
The thread sleeve further comprises an anti-slip pad, wherein the anti-slip pad is fixedly connected with the handle and is positioned on one side of the handle.
The petroleum expansion casing joint further comprises an anti-corrosion layer, and the anti-corrosion layer is arranged on the outer side of the first connecting joint.
The first connector is provided with an alignment rod, and the mounting tube is provided with an alignment groove matched with the alignment rod.
The inflatable cavity comprises an inflatable cavity body, a connecting valve and a sealing sleeve, wherein the connecting valve is communicated with the inflatable cavity body and is positioned on one side of the connecting ring, and the sealing sleeve is sleeved on the outer side of the inflatable cavity body.
The petroleum expansion casing joint further comprises a seal detector, wherein the seal detector is connected with the inflation cavity body and is positioned on the outer side of the inflation cavity body.
The sealing detector comprises an air pressure sensor, a data storage module, a judging module and an inflating module, wherein the air pressure sensor is arranged on the inflating cavity body, the data storage module is connected with the air pressure sensor, the judging module is connected with the data storage module, and the inflating module is connected with the judging module; the air pressure sensor is used for detecting an air pressure value in the inflatable cavity body, the data storage module is used for storing air pressure value data, the judging module is used for judging whether the sealing pressure is enough or not based on the air pressure value, and the air inflation module is driven to supplement pressure when the sealing pressure is insufficient.
According to the petroleum expansion casing joint, when the petroleum expansion casing joint is connected, the sliding sleeve is arranged on the first joint, so that the sliding sleeve can slide relative to the first joint, the threaded sleeve can be driven to be close to the installation tube, the threaded sleeve is connected with the connecting tube on the installation tube, at the moment, the connecting tube also penetrates into the inner tube of the first joint, the sealing performance of a connecting position can be improved through the sealing assembly, specifically, the supporting ring is arranged in the inner tube of the first joint, a first sealing ring and the first sealing ring are arranged on one side of the supporting ring to provide a first seal, then the limiting ring is arranged on one side of the limiting ring, the second sealing ring and the second sealing ring are arranged on one side of the limiting ring, the air filling cavity is arranged between the supporting ring and the limiting ring, and the air filling cavity is expanded when the sealing assembly is used, so that the supporting ring and the second sealing ring are applied with pressure, and the sealing performance can be improved, and the petroleum expansion casing joint can be better.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a block diagram of a petroleum expansion casing joint according to a first embodiment of the present invention.
Fig. 2 is an enlarged partial view of detail a of fig. 1.
Fig. 3 is a block diagram of a petroleum expansion casing joint according to a second embodiment of the present invention.
Fig. 4 is a partial enlarged view of detail B of fig. 3.
Fig. 5 is a structural view of a seal detector according to a third embodiment of the present invention.
The device comprises a first connecting head 101, a sliding sleeve 102, a threaded sleeve 130, a mounting tube 104, a sealing assembly 105, an inflation cavity 106, a supporting ring 107, a limiting ring 108, a first sealing ring 109, a second sealing ring 110, a first sealing ring 111, a second sealing ring 112, a handle 201, a sleeve body 202, a non-slip pad 203, a corrosion-resistant layer 204, an alignment rod 205, an inflation cavity body 206, a connecting valve 207, a sealing sleeve 208, a sealing detector 209, an air pressure sensor 301, a data storage module 302, a judging module 303, an inflation module 304 and an alarm module 305.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, in the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
First embodiment
Referring to fig. 1-2, fig. 1 is a block diagram of a petroleum expansion casing joint according to a first embodiment of the present invention. Fig. 2 is an enlarged partial view of detail a of fig. 1. The invention provides a petroleum expansion casing joint, which comprises a first connecting joint 101, a sliding sleeve 102, a threaded sleeve 130, a mounting pipe 104 and a sealing assembly 105, wherein the first connecting joint 101 is provided with an inner pipe, the sliding sleeve 102 is in sliding connection with the first connecting joint 101 and is positioned on one side of the first connecting joint 101, the threaded sleeve 130 is in rotary connection with the sliding sleeve 102 and is positioned on one side of the sliding sleeve 102, the mounting pipe 104 is provided with a connecting ring, the connecting ring is in threaded connection with the threaded sleeve 130, the sealing assembly 105 comprises an inflating cavity 106, a supporting ring 107, a limiting ring 108, a first sealing ring 109, a second sealing ring 110, a first sealing ring 111 and a second sealing ring 112, the supporting ring 107 is arranged on the inner pipe in a sliding manner, the limiting ring 108 is fixed on the mounting pipe 104, the inflating cavity 106 is arranged between the supporting ring 107 and the limiting ring 108, the first sealing ring 111 is arranged on one side of the supporting ring 107, the first sealing ring 109 is arranged between the first sealing ring 111 and the first sealing ring 108, the second sealing ring 106 is arranged between the inflating cavity 106 and the second sealing ring 112 and the first sealing ring 112.
In this embodiment, when the connection is performed, the sliding sleeve 102 is disposed on the first connector 101, so that the sliding sleeve 102 can slide relative to the first connector 101, so that the threaded sleeve 130 can be driven to approach the mounting pipe 104, so as to connect the threaded sleeve 130 with the connecting pipe on the mounting pipe 104, at this time, the connecting pipe also goes deep into the inner pipe of the first connector 101, the sealing performance of the connection can be improved by the sealing assembly 105, specifically, the supporting ring 107 is disposed in the inner pipe of the first connector 101, the first sealing ring 111 and the first sealing ring 109 are disposed on one side of the supporting ring 107 to provide a first seal, then the limiting ring 108 is disposed on the mounting pipe 104, the second sealing ring 112 and the second sealing ring 110 are disposed on one side of the limiting ring 108, so as to improve the sealing performance, and the inflatable sealing ring 107 is disposed between the supporting ring 107 and the limiting ring 108, so that the inflatable sealing performance can be improved when the inflatable sealing ring 107 is applied to the inflatable sealing chamber.
Second embodiment
Referring to fig. 3 to 4, fig. 3 is a structural view of a petroleum expansion casing joint according to a second embodiment of the present invention. Fig. 4 is a partial enlarged view of detail B of fig. 3. The present invention further provides a petroleum expansion casing joint, wherein the threaded sleeve 130 comprises a handle 201 and a sleeve body 202, and the handle 201 is slidably connected with the sleeve body 202 and is located at one side of the sleeve body 202. When the sleeve 202 needs to be rotated, the handle 201 can slide out of the sleeve 202, so that the handle 201 can be more conveniently held to rotate the sleeve 202, and the use is more convenient.
The threaded sleeve 130 further comprises a non-slip mat 203 fixedly connected to the handle 201 and located on one side of the handle 201. The anti-slip pad 203 can increase friction between the handle 201 and the user's hand, so that the use is more stable.
The petroleum expansion casing joint further comprises an anti-corrosion layer 204, wherein the anti-corrosion layer 204 is arranged on the outer side of the first connecting joint 101. The corrosion protection layer 204 may improve the corrosion protection of the first connector 101, thereby improving the lifetime of the outdoor use.
The first connector 101 has an alignment rod 205, and the mounting tube 104 has an alignment groove that mates with the alignment rod 205. The alignment rod 205 can be engaged with the alignment groove, so that alignment and installation can be performed more accurately.
The inflation cavity 106 comprises an inflation cavity body 206, a connecting valve 207 and a sealing sleeve 208, the connecting valve 207 is communicated with the inflation cavity body 206 and is positioned on one side of the connecting ring, and the sealing sleeve 208 is sleeved on the outer side of the inflation cavity body 206. The connecting valve 207 can be connected with an external inflation structure to inflate the inflation cavity body 206, so that the inflation cavity body 206 can be inflated to enable the sealing sleeve 208 to be in closer contact with other structures, and the tightness is improved.
Third embodiment
Referring to fig. 5, fig. 5 is a block diagram of a seal detector according to a third embodiment of the present invention. The present invention further provides a petroleum expansion casing joint, further comprising a seal detector 209, wherein the seal detector 209 is connected with the gas-filled cavity body 206 and is located outside the gas-filled cavity body 206. The pressure of the inflation chamber body 206 can be detected by the seal detector 209, so that the delivery pressure condition and the seal condition of the pipe can be detected.
Specifically, the seal detector 209 includes an air pressure sensor 301, a data storage module 302, a judgment module 303, and an inflation module 304, where the air pressure sensor 301 is disposed on the inflation cavity body 206, the data storage module 302 is connected to the air pressure sensor 301, the judgment module 303 is connected to the data storage module 302, and the inflation module 304 is connected to the judgment module 303; the air pressure sensor 301 is configured to detect an air pressure value in the air inflation cavity body 206, the data storage module 302 is configured to store air pressure value data, the judging module 303 is configured to judge whether the sealing pressure is sufficient based on the air pressure value, and drive the air inflation module 304 to supplement pressure when the sealing pressure is insufficient. By the above method, the pressure in the inflation cavity 106 can be detected, when the pressure is lower, the oil delivery pressure is lower, or leakage occurs, the pressure can be detected after inflation, if the pressure is continuously reduced, the leakage occurs, when the pressure is higher, the oil delivery pressure is high, and the inflation can be further performed to enhance the sealing property.
The seal detector 209 further comprises an alarm module 305, the alarm module 305 being configured to issue an alarm when the seal pressure exceeds a preset value.
Upon detecting that the pressure value exceeds a set threshold, the system will automatically trigger an alarm so that corresponding action can be taken to prevent a potential hazard or accident. The specific alarm strategy may vary depending on the application scenario and equipment, for example, if the supply valve object is set to on-off, the supply valve will be opened when the pressure is equal to or greater than 4.0, and the operating state will be alarmed when the pressure is greater than 6.0. Such a design is intended to ensure that the petroleum pipeline transportation operation can be safely performed.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present invention.
Claims (5)
1. The petroleum expansion casing joint is characterized in that,
The air pressure sensor comprises a first connecting head, a sliding sleeve, a threaded sleeve, a mounting pipe and a sealing assembly, wherein the first connecting head is provided with an inner pipe, the sliding sleeve is in sliding connection with the first connecting head and is positioned on one side of the first connecting head, the threaded sleeve is in rotary connection with the sliding sleeve and is positioned on one side of the sliding sleeve, the mounting pipe is provided with a connecting ring, the connecting ring is in threaded connection with the threaded sleeve, the sealing assembly comprises an air charging cavity, a supporting ring, a limiting ring, a first sealing ring, a second sealing ring, a first sealing ring and a second sealing ring, the supporting ring is arranged on the inner pipe in a sliding manner, the supporting ring is fixed on the mounting pipe, the air charging cavity is arranged between the supporting ring and the limiting ring, the first sealing ring is arranged between the first sealing ring and the air charging cavity, the second sealing ring is arranged on one side of the second sealing ring, the air charging cavity comprises a gas charging cavity body, a valve and a connecting sleeve, a gas pressure sensor body, a gas pressure sensor module and a gas pressure sensor module are arranged on the outer side of the air pressure sensor module, a gas pressure sensor module and a gas pressure sensor module are connected to the air pressure sensor module, the inflation module is connected with the judgment module; the air pressure sensor is used for detecting an air pressure value in the inflatable cavity body, the data storage module is used for storing air pressure value data, the judging module is used for judging whether the sealing pressure is enough or not based on the air pressure value, and the air inflation module is driven to supplement pressure when the sealing pressure is insufficient.
2. A petroleum expansion casing joint according to claim 1, wherein,
The threaded sleeve comprises a handle and a sleeve body, wherein the handle is in sliding connection with the sleeve body and is positioned on one side of the sleeve body.
3. A petroleum expansion casing joint according to claim 2, wherein,
The thread sleeve further comprises an anti-slip pad which is fixedly connected with the handle and is positioned on one side of the handle.
4. A petroleum expansion casing joint according to claim 3, wherein,
The petroleum expansion casing joint further comprises an anti-corrosion layer, and the anti-corrosion layer is arranged on the outer side of the first connecting joint.
5. A petroleum expansion casing joint according to claim 4, wherein,
The first connector is provided with an alignment rod, and the mounting tube is provided with an alignment groove matched with the alignment rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436163.XA CN117248834B (en) | 2023-11-01 | 2023-11-01 | Petroleum expansion casing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311436163.XA CN117248834B (en) | 2023-11-01 | 2023-11-01 | Petroleum expansion casing joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117248834A CN117248834A (en) | 2023-12-19 |
| CN117248834B true CN117248834B (en) | 2024-05-10 |
Family
ID=89129591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311436163.XA Active CN117248834B (en) | 2023-11-01 | 2023-11-01 | Petroleum expansion casing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117248834B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780270B (en) * | 2024-02-26 | 2024-05-31 | 大庆市华禹石油机械制造有限公司 | Special threaded joint of oil casing for high-temperature well |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003038A (en) * | 2003-06-10 | 2005-01-06 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| JP2009127754A (en) * | 2007-11-26 | 2009-06-11 | Osaka Gas Co Ltd | Screwed type pipe joint |
| CN204098845U (en) * | 2014-07-25 | 2015-01-14 | 山东永志石油装备有限公司 | COMPRESSIONTYPE cover pipe connection |
| CN207298150U (en) * | 2017-10-13 | 2018-05-01 | 叶茂 | A kind of safety-type chemical petroleum plumbing installation |
| CN213629300U (en) * | 2020-11-25 | 2021-07-06 | 盐城市佳鑫石化机械制造有限公司 | High leakproofness three way type petroleum valve |
| CN219712591U (en) * | 2023-03-21 | 2023-09-19 | 上海海隆石油钻具有限公司 | Sealing assembly for joint of oil and gas conveying pipeline |
-
2023
- 2023-11-01 CN CN202311436163.XA patent/CN117248834B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005003038A (en) * | 2003-06-10 | 2005-01-06 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| JP2009127754A (en) * | 2007-11-26 | 2009-06-11 | Osaka Gas Co Ltd | Screwed type pipe joint |
| CN204098845U (en) * | 2014-07-25 | 2015-01-14 | 山东永志石油装备有限公司 | COMPRESSIONTYPE cover pipe connection |
| CN207298150U (en) * | 2017-10-13 | 2018-05-01 | 叶茂 | A kind of safety-type chemical petroleum plumbing installation |
| CN213629300U (en) * | 2020-11-25 | 2021-07-06 | 盐城市佳鑫石化机械制造有限公司 | High leakproofness three way type petroleum valve |
| CN219712591U (en) * | 2023-03-21 | 2023-09-19 | 上海海隆石油钻具有限公司 | Sealing assembly for joint of oil and gas conveying pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117248834A (en) | 2023-12-19 |
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